CN102909719B - Wobbler crisscross line scribing method - Google Patents

Abstract

The invention discloses a wobbler crisscross line scribing method. Not only can an Rb processing line be accurately and quickly determined through a linear position limiting method, but also the processing scribing quality and the position degree are improved. According to a relation formula that T is equal to 0.7071Rn-0.5858Rb, the numerical value of T is calculated to scribe an excircle center line. Then, two straight lines are planned by scribing and extend to an excircle of a roller shaft head. Another center line and two corresponding straight lines are scribed on the roller shaft head and extend to the excircle of the roller shaft head. The position of an Rb center point is scribed through two vertical lines of a crisscross line, and then the Rb processing line is scribed. The wobbler crisscross line scribing method has the beneficial effects that the position of a circular arc is firstly positioned by the straight lines through the crisscross line to be conveniently, easily and accurately scribed; the processing correctness and the processing accuracy of the width of a processed residual roller can be directly measured and detected with a caliper, so that the qualified rate of the position degree of a wobbler of the processed roller is high; and moreover, the sample cost is eliminated, and the production cost is reduced.

Description

Wabbler well word line method of scoring

Technical field

The present invention relates to a kind of mechanical process technique, especially the method for scoring of wabbler in processing technology.

Background technology

In traditional wabbler technological method for processing, after the spindle nose of workpiece to be processed need to being divided equally, process 4 and cut arc groove taking radius as Rb, spindle nose after processing is commonly referred to as wabbler, and in the time that to be Rb at 4 radiuses of processing cut arc groove, owing to cutting the radius R b of arc and inscribed circle Rn radius hour, need mark one section of straight line the radius R b that cuts arc is extended on cylindrical, and this specific wabbler is called crosshead; Before processing wabbler and crosshead, need the processing of ruling of the spindle nose of workpiece to be processed, at present, conventional scribble method is " model method of scoring " and end face " picture method of scoring ", use " model method of scoring " to need making and end surface shape, measure-alike model, make like this process costs greatly improve; Adopt end face " picture method of scoring " because the home position most cases of radius R b of cutting arc is outside workpiece to be processed, thereby cause positional precision to determine difficulty, cause line precision to reduce, cause the workpiece calibration processing poor, impact assembling is used.

Summary of the invention

The technical issues that need to address of the present invention are to provide a kind of by well word line restriction cylindrical position of intersecting point, determine and cut arc accurately and rapidly, the wabbler well word line method of scoring of raising processing line quality and position degree.

For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of wabbler well word line method of scoring, is characterized in that comprising the following steps:

1) cut the radius R b of arc and wabbler and cut the functional relation T=1.414Rn-0.5858Rb of the inscribed circle radius Rn of arc and calculate the numerical value of wabbler width T according to the wabbler of layout design;

2) on wabbler end face, mark two mutually perpendicular center lines;

3) mark respectively on wabbler end face with marking gauge being parallel to center line and equaling two straight lines of T/2 with distance between center line taking every center line as benchmark, four straight lines that draw form well word line, article two, the width between parallel well word line is wabbler width T, and described every straight line forms two cylindrical intersection points with wabbler cylindrical respectively;

4) magnetic force auxiliary block is adsorbed onto on the wabbler cylindrical of the straight-line intersection relevant position forming with four straight lines of well word line, and makes the end face of magnetic force auxiliary block and the end face of wabbler be positioned at same plane;

Survey distance between pin by two of marking gauge and be adjusted into the radius R b that cuts arc, mark the centre point position of cutting arc as the center of circle taking Rb as radius at magnetic force auxiliary block end face taking two cylindrical intersection points that are positioned at magnetic force auxiliary block both sides, then mark the arc of cutting of wabbler taking this centre point as the center of circle;

5) operation of repeating step 4 marks whole wabbler other cuts arc.

Owing to having adopted technique scheme, the obtained technological progress of the present invention is:

Wabbler well word line method of scoring of the present invention is cut the inscribed circle radius Rn of arc functional relation by cutting the radius R b of arc and wabbler can directly calculate the numerical value of wabbler width T, and mark Jing Zixian and obtain cylindrical intersection point, thereby mark the arc of cutting of wabbler, the method is easy to operate, line accurately, ensureing processing line quality and position degree qualification rate simultaneously, the correctness and the accuracy that make the wabbler width after processing can carry out directly measuring with slide calliper rule inspection processing, save sample expense use, reduced production cost.

Brief description of the drawings

Fig. 1 is the scratching process view of the present invention at wabbler end face; Wherein 1 is magnet base.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention is described in further details:

Process Design Requirement Drawing according to roll wobbler: known wabbler is cut the inscribed circle radius Rn of arc, the radius R b numerical value that wabbler is cut arc.

According to well word line and Rb is tangent can draw:

sin45°＝(T/2+Rb)/(Rb+Rn)

T/2+Rb＝(Rb+Rn)×sin45°

T＝2Rnsin45°-2(1-sin45°)Rb

T＝1.414Rn-0.5858Rb

According to formula obtained above, cut the radius R b of arc and wabbler and cut the functional relation T=1.414Rn-0.5858Rb of the inscribed circle radius Rn of arc and calculate the numerical value of wabbler width T according to the wabbler of layout design; On wabbler end face, mark two mutually perpendicular center line a and b; On wabbler end face, mark respectively being parallel to two center line a and b and equaling four straight line a1, a2, b1 and the b2 of T/2 with two center line a and b distance taking two center line a and b as benchmark with marking gauge, four straight line a1, a2, b1 and the b2 drawing forms well word line, article two, the width between parallel well word line is wabbler width T, and described every straight line forms two cylindrical intersection point A and B with wabbler cylindrical respectively; Magnetic force auxiliary block is adsorbed onto and the wabbler cylindrical of the straight-line intersection C relevant position that four straight lines of well word line form on (being on the cylindrical between A point and B point), and make the end face of magnetic force auxiliary block and the end face of wabbler be positioned at same plane; Survey distance between pin by two of marking gauge and be adjusted into the radius R b that cuts arc c, mark the centre point position of cutting arc c taking cylindrical intersection point A and B as the center of circle taking Rb as radius at magnetic force auxiliary block end face, that then marks wabbler taking this centre point as the center of circle cuts arc c; The operation of repeating step 4 marks whole wabbler, and other cuts arc c.

Claims (1)

1. a wabbler well word line method of scoring, is characterized in that comprising the following steps:

1) cut the radius R b of arc and wabbler and cut the functional relation T=1.414Rn-0.5858Rb of the inscribed circle radius Rn of arc and calculate the numerical value of wabbler width T according to the wabbler of layout design;

2) on wabbler end face, mark two mutually perpendicular center lines;

3) mark respectively on wabbler end face with marking gauge being parallel to center line and equaling two straight lines of T/2 with distance between center line taking every center line as benchmark, four straight lines that draw form well word line, article two, the width between parallel well word line is wabbler width T, and described every straight line forms two cylindrical intersection points with wabbler cylindrical respectively;

4) magnetic force auxiliary block is adsorbed onto on the wabbler cylindrical of the straight-line intersection relevant position forming with four straight lines of well word line, and makes the end face of magnetic force auxiliary block and the end face of wabbler be positioned at same plane;

Survey distance between pin by two of marking gauge and be adjusted into the radius R b that cuts arc, mark the centre point position of cutting arc as the center of circle taking Rb as radius at magnetic force auxiliary block end face taking two cylindrical intersection points that are positioned at magnetic force auxiliary block both sides, then mark the arc of cutting of wabbler taking this centre point as the center of circle;

5) operation of repeating step 4 marks whole wabbler other cuts arc.